npm i vue,npm i vue -g,sudo npm i vue都不行。
npm WARN saveError ENOENT: no such file or directory, open '/Users/apple/package.json'
npm WARN enoent ENOENT: no such file or directory, open '/Users/apple/package.json'
npm WARN apple No description
npm WARN apple No repository field.
npm WARN apple No README data
npm WARN apple No license field.
+ vue@2.5.21
updated 1 package and audited 1 package in 1.25s
found 0 vulnerabilities
这是什么意思。这个package.json文件是npm创建的吗？谢谢